CBSE Class 10 Answered
find all the zeros of Xcube-Xsq-4x+4 if one of its zero is -2
Asked by | 24 May, 2009, 10:44: AM
Expert Answer
x3 - x2 -4x + 4 = x2 (x-1) -4 (x-1)
= (x2 - 4) (x-1)
= (x-2) (x+2) (x-1)
So the zeroes are x = 2, x = -2 and x = 1
Answered by | 26 May, 2009, 04:25: PM
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